async completion()

in lib/cli.js [90:122]

• 28 lines of code
• 8 McCabe index (conditional complexity)

  async completion(args) {
    if (args.length === 0) {
      for (const [name] of this.commands) {
        console.log(name);
      }
      return;
    }

    if (args.length === 1) {
      const prefix = args[0];
      for (const [name] of this.commands) {
        if (name.startsWith(prefix)) {
          console.log(name);
        }
      }
      return;
    }

    // after --, no more auto completion
    if (args.indexOf('--') !== -1) {
      return;
    }

    // eslint-disable-next-line no-unused-vars
    const [name, ...others] = args;
    const cmd = this.commands.get(name);
    if (cmd.options) {
      Object.keys(cmd.options).forEach((item) => {
        console.log(`--${item}`);
      });
      return;
    }
  }